Ice apparatus



Jan. 8, I.

. W- HENNI ETAL ICE ARATU Filed M 18 927 Ime Wilhel fly Franz G keymovably sealed in its connection with such Patented Jan. 8, 1929. g

UNITED STA Application fllcd lay 18, 1927, Serialllfo. 192,436.51 in Germany September 1,

' The invention is directed to a refrigeratin apparatus in which refrilgeration is produce by the reaction of suitab e chemicals.

he primary object of the present mvention is the provision of an apparatus of this type constructed to be convemently portable and including a casing ,in which is secured an insulating receptacle open at both ends. A material receivm tank is adapted to be removably inserte' within the insulatin receptacle from one end of the latter an remsulating receptacle. The casing, which includes the remaining open end of the insulatl5 ing receptacle, is adapted to receive a cap carry of the insulating, receptac A -further object of the invention is the srovision in the material tank of means for lrecting the, cooling effect to' the center of v the material being chilled or frozen, with such material tank exteriorly formed to increase conduction, with the said conduction increas ing means serving to maintain a itation and therefore roper mixture of a freezing chemicals uring tlfe use of the'ap aratus.

The invention is illustrated in t e accompanying draw ngs, in which:

. overlies and rests Figure 1 is a vertical sectional view through a re rigerating apparatus constructed in accordance with the present inventio Fi re 2 is a transverse A-Fof Figure 1.

A casing a open at both ends is formed near one end, hereinafter termed" the upper end, with an inset portion roviding a shoulder'a' above which the wall of the receptacle is appr'o riately bent to receive and securea ring 2' w ich is-interiorly'threaded. An insulating rece taclein the form of a double walled glass ody e is arranged within the casing a, the lower end of the insulating'rece tacle being of reduced diameter to en age a ange s inturned at the lower end of t e casing 11. The insulating receptacle extends below the lower end of the casing and is, it will be noted, open at both ends. 7 .f

' The material tank a is shown of conical form with an out-turned edge flange c which insulating receptacle, a suitable packing ring 0 being interposed betweenfthe .parts. A clam ing ring p is threaded within the ring a an bears upon the flange c of the material tank, thus serving, through the use of the TES] - which, in

g means for closing the adjacent end the tank section on the line "a: and

upon the upper end of the v 9 3 2] TPATEINT OFFICE.

. H AND rmz annulus, or. neurone, GERMANY. I Ion .mmm. i

packing to sleal, the upper'end of the insulating recepac e. v

The material tank, which as stated is preferably of conical form, is exteriorly provided with additional heat transference means a the form shown is a spirally arranged web d which extends from'the upper edge of the tank to the bottom. This web not on y assists in transferring heat in the well known manner but also serves as an agitator and mixer for the chemical solution, as will be later described. 'The web may, if desired, be formed with openings 1' extending therethrough. l 'A lifting element is adapted to "be insert ed in the material'tank, such element bein in the form of a tubular member 14 exten mg axially of the tank and having radiating vanfes o. In the event the material in the tank is to be frozen solid, it will, of course, adhere to the vanes and may be lifted from thermore, the vanes and central tube tend to a more readytransference of heat on the central portion of the material .and hence to a more rapid freezingof the material. The ugfier end of the l1fter is provided with a 1i for convenience in lifting the material from the tank. r

The upper end of the tank is closed by a block recessed at g to accommodate the link aring on the flange a of the tank and against the block p by an interposed gasket yokek overlies the upper portlon of the apparatus, having terminal hooks k to engage beneath the shoulder a of the casin this yoke havin a transverse/u per bar i centrally treads? at k to receive tlie threaded. stem Z of a thumb-screw having a foot 3 seating in a recess in the cover block 9. Ohviously, the block may be sealed in pbsiring 0 to cause the "material tank in the lifting of the element. Fur-' tion by pressure of the thumb-screw or After the introduction of the material to be frozen into the material tank and the sealing of the latter in place,ap ropriate chemicals are introduced within t e lower end of the insulating receptacle and the cap f applied. The receptacle is then subjected to more or less agitation by reversing itend for end to cause the chemicals to flow lengthwise the material tank. In this movement it is of course apparent that the web (1 assists in maintaining proper agitation and mixture of the chemicals and thereby facilitates the heat absorbing function. The cover tnlay fit over the upper end of the apparatus if desired and the cap f may have graduations 0 to permit 1 the cap to serve as a measure for the chemicals to be introduced. A relief openingclosed by a plug 6 may be formed in the cover plate 9' if desired. What is claimed to be new is I 1. A refrigerating apparatus including an insulatingreceptacle open at both ends, a material receiving tank arran ed within the receptacle and adapted to seal one end thereof, and means for removably sealing the opposite end of the. insulatin receptacle to provide a closed space in said receptacle exteriorly of the material tank for the reception of the refrigerating chemicals.

2. A refrigerating apparatus comprising a casing, an insulating receptacle open at both ends and arranged within and spaced from the walls of the casing, a. material receiving tank arranged within' the receptacle and adapted to seal one end thereof,'and a cap removably engagin the casing and sealing the opposite end of the receptacle.

' 3. A refrigerating apparatus comprising a casing, an insulating receptacle open at both ends and arranged within and spaced from the walls of the casing, a material receiving tank arranged within the receptacle and adapted to seal one end thereof, a cap removably engaging the casing and sealing the opposite end of the receptacle, and a heat transto provide a closed space in said ference web arranged exteriorly of the material receiving tank. a

4. A refrigerating apparatus including an insulating receptacle open at both ends, a conical material receiving tank arranged within the rece tacle and adapted to seal one end thereof, and means for removably sealing the opposite end of the insulating receptacle to provide a closed space in said receptacle exteriorly of the material tank for the reception of the refrigerating chemicals;

5. A refrigerating apparatus including an insulating receptacle open at both ends, a

conical material receiving tank arranged within thereceptacle and adapted to seal one end thereof, means for removably sealing I the opposite end of the insulatin receptacle receptacle exteriorly of the material tank for the reception of the refrigerating chemicals, and a material lifter arranged within. the material tank and comprising 'a central element and vanes radiating therefrom. I

6. A refriegratin apparatus including a metallic casing, a dou le walled glass receptacle open at both ends arranged within the casing, a conical metallic material tank havin a flange to overlie theupper end-of the g ass receptacle to seal the latter at one end, a cap removably cooperating with the casing, a plug carried by the cap to seal the opposite end of the glass receptacle, a threaded ring carried by 'theupper end of the casing, a pressure element having threaded coo eration with the ring and bearing upon the ange'of the material tank, a yoke removably engaging the casing, a cover block arranged to overlie the upper end of thetank, and a member threaded through the 'oke and bearing on the block to seal the tank.

tures.

WILHELM HENNING. FRANZ GADEKE. 

